Washington earthquakes

M1.9 earthquake 22 km S of Morton, Washington

A magnitude 1.9 earthquake struck 22 km S of Morton, Washington on Mon, May 31, 1982, 10:29 PM PDT (05:29 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.0 2 km ESE of Deer Island, Oregon. This one was a foreshock.

Morton forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1982-06-01 05:29:29 UTC
Depth
4.7 km (2.9 mi), shallow
Epicenter
46.357° N, 122.247° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.2 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
87°
Stations used
20

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 59 in the 30 days before it.

After

  1. 2.02 km ESE of Deer Island, Oregon · 16183 days ago · 23 km deep · 66 km away
  2. 1.520 km S of Morton, Washington · 16181 days ago · 9 km deep · 2 km away
  3. 1.93 km SW of Mineral, Washington · 16180 days ago · 7 km deep · 37 km away
  4. 1.628 km SSE of Morton, Washington · 16178 days ago · 4 km deep · 6 km away
  5. 2.29 km E of Ashford, Washington · 16175 days ago · 4 km deep · 52 km away
  6. 1.525 km S of Morton, Washington · 16173 days ago · 13 km deep · 3 km away
  7. 1.636 km NNE of Amboy, Washington · 16172 days ago · -1 km deep · 18 km away
  8. 1.823 km S of Morton, Washington · 16172 days ago · 5 km deep · 1 km away
  9. 1.911 km ESE of Carbonado, Washington · 16163 days ago · 10 km deep · 82 km away
  10. 2.08 km WNW of North Portland, Oregon · 16159 days ago · 18 km deep · 90 km away
  11. 2.223 km ENE of Ashford, Washington · 16158 days ago · -1 km deep · 67 km away
  12. 2.32 km SE of Crocker, Washington · 16155 days ago · -1 km deep · 80 km away
  13. 1.631 km NE of Yacolt, Washington · 16148 days ago · 1 km deep · 39 km away
  14. 1.724 km S of Greenwater, Washington · 16145 days ago · 8 km deep · 80 km away
  15. 1.924 km ESE of Packwood, Washington · 16145 days ago · -1 km deep · 69 km away
  16. 1.537 km S of Morton, Washington · 16140 days ago · -1 km deep · 15 km away
  17. 2.412 km E of Wilkeson, Washington · 16140 days ago · 17 km deep · 87 km away
  18. 2.923 km ESE of Packwood, Washington · 16138 days ago · 6 km deep · 69 km away
  19. 1.624 km S of Morton, Washington · 16132 days ago · 5 km deep · 3 km away
  20. 1.633 km NE of Amboy, Washington · 16130 days ago · 1 km deep · 24 km away
  21. 2.111 km S of Greenwater, Washington · 16129 days ago · 0 km deep · 90 km away
  22. 1.625 km S of Morton, Washington · 16128 days ago · 8 km deep · 3 km away

Before

  1. 1.823 km S of Morton, Washington · 16186 days ago · 11 km deep · 2 km away
  2. 3.024 km S of Morton, Washington · 16186 days ago · 11 km deep · 2 km away
  3. 1.723 km S of Morton, Washington · 16189 days ago · 10 km deep · 1 km away
  4. 1.723 km S of Morton, Washington · 16190 days ago · 6 km deep · 1 km away
  5. 1.82 km NE of Brush Prairie, Washington · 16191 days ago · 14 km deep · 71 km away
  6. 1.823 km S of Morton, Washington · 16191 days ago · 11 km deep · 1 km away
  7. 1.637 km NNE of Amboy, Washington · 16200 days ago · -1 km deep · 18 km away
  8. 1.638 km NNE of Amboy, Washington · 16200 days ago · 0 km deep · 18 km away
  9. 1.67 km ESE of McKenna, Washington · 16201 days ago · 22 km deep · 65 km away
  10. 2.139 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 17 km away
  11. 1.736 km NNE of Amboy, Washington · 16201 days ago · -1 km deep · 18 km away
  12. 2.338 km NNE of Amboy, Washington · 16201 days ago · -1 km deep · 17 km away
  13. 2.037 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 18 km away
  14. 1.938 km NNE of Amboy, Washington · 16201 days ago · -1 km deep · 18 km away
  15. 1.938 km NNE of Amboy, Washington · 16201 days ago · 0 km deep · 17 km away
  16. 1.837 km NNE of Amboy, Washington · 16202 days ago · -1 km deep · 18 km away
  17. 1.838 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 18 km away
  18. 1.537 km NNE of Amboy, Washington · 16202 days ago · 1 km deep · 18 km away
  19. 2.038 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 18 km away
  20. 1.738 km NNE of Amboy, Washington · 16202 days ago · 0 km deep · 18 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10132113. Read Wed, Sep 23, 2026, 1:32 PM UTC.